package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.exception.CustException;
import com.heima.common.exception.CustomException;
import com.heima.model.behavior.dto.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.constants.admin.HotArticleConstants;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.common.threadlocal.AppThreadLocalUtils;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Service
@Slf4j
public class ApLikesBehaviorServiceImpl implements ApLikesBehaviorService {
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
        // 1. 校验参数
        if (dto == null) {
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "数据为空");
        }
        //点赞需要登录
        ApUser user = AppThreadLocalUtils.getUser();
        if (user == null) {
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "请先登录");
        }
        //校验文章id不能为空     使用注解校验
        //校验点赞方式 只能是0 或 1   使用注解校验
        // 2. 根据当前登录用户id查询行为实体对象
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user.getId(), dto.getEquipmentId());
        if(apBehaviorEntry==null){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"用户id和设备id为空");
        }
        // 3. 如果是点赞操作
        if (dto.getOperation() == 0) {
            //点赞操作
            //根据实体id查询文章点赞行为对象
            Query query = Query.query(Criteria.where("entryId").is(apBehaviorEntry.getId()));
            List<ApLikesBehavior> apLikesBehaviors = mongoTemplate.find(query, ApLikesBehavior.class);
            //遍历集合
            for (ApLikesBehavior apLikesBehavior : apLikesBehaviors) {
                //判断是否已经点过赞 文章id是否一致
                if (apLikesBehavior.getArticleId().equals(dto.getArticleId())) {
                    CustException.cust(AppHttpCodeEnum.DATA_EXIST, "不能重复点赞");
                }
            }
            // 4. 没有点过赞则 像mongo点赞集合中 添加点赞数据
            ApLikesBehavior apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(apBehaviorEntry.getId());
            apLikesBehavior.setArticleId(dto.getArticleId());
            apLikesBehavior.setType(dto.getType());
            apLikesBehavior.setCreatedTime(new Date());
            mongoTemplate.save(apLikesBehavior);
            return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
        }
        // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
        //根据实体id、文章id查询文章点赞行为对象
        Query query = Query.query(Criteria.where("entryId").is(apBehaviorEntry.getId()).and("articleId").is(dto.getArticleId()));
        //删除点赞数据
        mongoTemplate.remove(query, ApLikesBehavior.class);

        //添加文章点赞-发送消息
        NewBehaviorDTO mess = new NewBehaviorDTO();
        mess.setType(NewBehaviorDTO.BehaviorType.LIKES);
        mess.setArticleId(dto.getArticleId());
        mess.setAdd(dto.getOperation() == 0 ? 1 : -1);
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(mess));
        log.info("点赞行为 发送消息 ==>{}", JSON.toJSONString(mess));
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}
